thanks a lot for the patch. looks good.
i only have 1 minor issues:
a) could you (for completeness) handle the JCR_NODETYPES_CND_LN property upon PROPFIND as well?
b) the jcr tests related to node type registration are still commented in jcr2dav/pom.xml and spi2dav/pom.xml 
could you uncomment those as part of the patch and make sure that they pass? that would be great.
thanks in advance
 the commented tests:
JCR-2454 : node type registration -->